Hallo! > I am looking for PD objects and/or abstractions > to do HRTF filtering. > Any ideas on where to get them? 2 possibilities: - use the earplug~ external (in cvs/externals/earplug~) - use binaural ambisonic I am just making some workshop patches on how to do that for the linux audio conference - so if you wait a few days you can have the patches ... LG Georg